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php library to convert ANSI to HTML5

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php library to convert ANSI to HTML5

<?php
/*
 * This file is part of ansi-to-html.
 *
 * (c) 2013 Fabien Potencier
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SensioLabs\AnsiConverter;
use SensioLabs\AnsiConverter\Theme\Theme;
/**
 * Converts an ANSI text to HTML5.
 */
class AnsiToHtmlConverter
{
    protected $theme;
    protected $charset;
    protected $inlineStyles;
    protected $inlineColors;
    protected $colorNames;
    public function __construct(Theme $theme = null, $inlineStyles = true, $charset = 'UTF-8')
    {
        $this->theme = null === $theme ? new Theme() : $theme;
        $this->inlineStyles = $inlineStyles;
        $this->charset = $charset;
        $this->inlineColors = $this->theme->asArray();
        $this->colorNames = array(
            'black', 'red', 'green', 'yellow', 'blue', 'magenta', 'cyan', 'white',
            '', '',
            'brblack', 'brred', 'brgreen', 'bryellow', 'brblue', 'brmagenta', 'brcyan', 'brwhite',
        );

ANSI is a character code. In order to enable the computer to support more languages, 1 byte in the range of 0x00~0x7f is usually used to represent 1 English character. Anything outside this range is encoded using 0x80~0xFFFF, which is extended ASCII encoding.

In order for the computer to support more languages, 2 bytes in the range of 0x80~0xFFFF are usually used to represent 1 character. For example: the Chinese character '中' is stored in

ANSI encoding

Chinese operating system, using the two bytes [0xD6,0xD0] for storage.

Different countries and regions have formulated different standards, resulting in their own encoding standards such as GB2312, GBK, GB18030, Big5, and Shift_JIS. These various Chinese character extended encoding methods that use multiple bytes to represent a character are called ANSI encoding. In the Simplified Chinese Windows operating system, ANSI encoding represents GBK encoding; in the Traditional Chinese Windows operating system, ANSI encoding represents Big5; in the Japanese Windows operating system, ANSI encoding represents Shift_JIS encoding.

Different ANSI codes are incompatible with each other. When information is exchanged internationally, text belonging to two languages cannot be stored in the same ANSI coded text.

ANSI encoding uses one byte to represent English characters, and two or four bytes to represent Chinese characters.

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